Analysis of mine rescue equipment and rescue technology from five aspects

China is the world's largest coal producer, ranking first in coal production in the world. China is also a coal mine accident-prone country. According to authoritative statistics, coal mines in the country (including state-owned key coal mines, state-owned coal mines, township coal mines, and individual coal mines, etc.) account for world coal mine accidents. More than two-thirds of the annual death toll is second only to transportation accidents and ranks second. Therefore, we must pay full attention to the safety production work of coal mines. As far as the mine rescue itself is concerned, improving disaster-resistance levels and capabilities and improving disaster relief effectiveness have always been the subject of frequent research within the business scope. Coal mine rescue teams should often sum up their daily management and disaster relief experience, constantly explore ways and measures for improving disaster relief effectiveness, overcome unfavorable factors, and promote favorable factors so that the rescue level of the coal mine rescue teams and the effect of disaster relief can be improved and improved.

Emergency rescue equipment is an indispensable weapon for mine rescue teams to do well in coal mine safety technical work and handle sudden accidents. Equipped with advanced and advanced technical equipment is the foundation and indispensable means for promoting coal mine safety and rescue work, and it is also an important way to improve the combat effectiveness of rescue operations.

1 Research on Emergency Rescue Equipment and Equipment When a major disaster occurs in a mine, the underground roadway and equipment will be severely damaged and personnel will be trapped. Emergency rescue equipment and various types of equipment are the most effective equipment for opening up safe passages and rescuing trapped people. They are important means to fight for rescue time and save the lives of people. Rescue rigs are the key equipment to open safe passages. The ZDY4000S hydraulic rescue rig is based on the successful experience of developing large-scale tunnel drilling rigs. According to the special needs of emergency rescue, it is determined that high-precision, large-diameter directionality can be rapidly constructed in relatively complete formations. The main technical parameters and construction techniques of the rescue drill hole meet the target requirements for rescue drilling with a drilling diameter of 600mm and a depth of 50m. The successful development of the EBZ120QX underground rapid rescue boring machine can meet the needs of the existing mines in China to deal with the falling roof rock quickly to open the emergency rescue tunnel. This type of boring machine is based on the existing models in the country, developed a coal mining underground rapid rescue boring machine, the overall performance has reached the leading domestic level.

2 Research on personnel detection equipment DKL life detector A new type of radar life detector developed by the United States high-tech company, which is currently one of the most advanced search and rescue instruments in the world. The DKL Life Detector uses the electric field generated by the ultra-low-frequency wave below 30 Hz emitted by the human body's heart beat to search and lock the electromagnetic field through the reflection of the human body's ultra-low frequency electric field, which has reached the goal of quickly finding the location of the person in distress. The ultra-low frequency electric field emitted by the human heart can penetrate reinforced concrete walls, steel plates, wood plates, water and other media. As long as people are alive, whether they are awake or not, they can use life detectors to find people in the shortest possible time. The detector is small in size, weighs only about 1KG, and is easy to carry. It is widely used in rescue and fire fighting teams in more than 40 countries in the world. In addition, a portable personnel positioning device has been successfully developed in China. The rescue team carries a personnel locator and can search for distressed miners wearing a miner's position indicator card.

3 The research on rescue command, dispatch, and communication system adopts Internet/Intranet network technology and GIS technology to develop rescue and disaster relief dispatch command decision support information system, which realizes the automatic processing functions of accident response, disaster relief and emergency management, and realizes the process of accident rescue. The information sharing, thereby improving the emergency handling capacity of mine disaster accidents, ensuring timely response and emergency rescue work quickly and effectively. In addition, technologies and equipment such as the "mine emergency rescue and disaster monitoring and command system" have been developed, and the ZLC series of on-board mine disaster relief command systems have been developed, including mine disaster relief decision-making expert systems, ZS15 vehicle-mounted beam monitoring systems, and low-illumination mining industrial televisions. System and mining disaster relief command communication system. In addition, a national coal mine safety information database will be established to develop emergency rescue technologies and equipment such as the nationwide map-based website information management system. In a relatively short period of time, we will raise the individual technologies of communication, information, decision-making, commanding, and dispatching for disaster relief to a new level, and gradually integrate them to raise China's coal mine disaster rescuing capability to a new level.

4 Research on safety protection equipment and instruments Research on personal protective equipment. Oxygen breathing apparatus is an important personal protective equipment for rescue teams in coal mine emergency rescue. Oxygen breathing apparatus is divided into negative pressure oxygen breathing apparatus and positive pressure oxygen breathing apparatus. However, due to backward technology, negative pressure oxygen breathing apparatus is gradually being eliminated. In the 1990s, China introduced the United States and Germany positive pressure oxygen breathing apparatus technology, and assembled a BG4 positive pressure oxygen breathing apparatus. At the end of the year 90, it successfully transformed into a positive pressure oxygen breathing apparatus for China's current situation. At the same time, it also increased the research investment and technology introduction, and successively developed the HYZ-4 positive pressure oxygen breathing apparatus and the new PB4 positive pressure oxygen breathing apparatus. This new product has laid the foundation for the upgrading of our rescue team equipment.

5 Summary The use of DKL life detectors to search for trapped underground personnel and lock in positions provides a scientific basis for emergency rescue headquarters to correctly formulate rescue plans. At the same time, the use of ambulance ambulances to establish temporary command posts: due to the accident mine conditions are limited, the use of camping vehicles to establish a temporary command post, to facilitate the command of the rescue personnel to study and formulate disaster relief programs to resolve problems and difficulties in emergencies. The function of the camping car is relatively complete. It solves the problems of bathing, changing and rest during the rescue of the players, and ensures that the players have enough energy and physical energy to re-enter the rescue battle. Rapidly establish an emergency rescue dedicated line communication system to maintain uninterrupted communications for the underground site and headquarters, feedback on-site conditions, and provide timely guarantees for the decision-making of the headquarters. Moreover, as a professional ambulance team, it must have its own disaster relief communication system, so that the ambulance work can be commanded by a single line to improve efficiency, and it is beneficial to form a rescue rescue command system with the ambulance team as the main body, optimize the command procedures, and increase the rescue efficiency.